Chemistry Cumulative Exam Study Guide Questions and Answers Rated A+

Chemistry Cumulative Exam Study Guide Questions and Answers Rated A+ What is the name of H2CO3, a compound commonly found in carbonated drinks? carbonic acid How can an acid be best defined? An acid raises the concentration of hydrogen ions in a solution. Which sign would indicate the presence of an acid? It reacts with certain metals to generate a gas. What characteristic indicates a substance is an acid? Acids increase the concentration of hydrogen ions in the solution. What defines a strong base? A strong base removes hydrogen ions from the solution. 2 When H2SO4 is added to a large volume of water, what change is observed compared to the original water? The solution turns blue litmus paper red. The principal active substances in bleach and many other cleaning agents are typically: bases Which pair of substances is likely to form a precipitate when reacting with a base? a soluble metal salt and carbon dioxide Which statement correctly describes the self-ionization of water? Two water molecules interact to form a hydronium ion and a hydroxide ion. What would be the properties of a solution containing HCl? It would have a low pH and a high pOH. In the reaction H2SO4 + Ca(OH)2(aq) → CaSO4(aq) + 2H2O(l), which substance acts as the base? 3 Ca(OH)2(aq) If the pOH of a solution is 10.75, what is the hydroxide ion concentration? 1.778 x 10^-11 M